Locomotive air turret



c. c. FARMER Locouo'rly AIR TURRE'T Filed Nov. l.V 1923 Aug. 18, 1925,

INVENTOR C LYDE C. FARMER ww@ ATTORNEY Patented iti,

LYDE C. FARMER, Ol? PITTSBUEGB, P

011 PENNSYLVANIA.

nnnsvrivnlvra, Assieuon 'ro 'rain WEs'rING- acusa ara nnarrncoraranv, onwint..

tannins, 4rnivnsvi.v'aivta, a ooaronarrolv toooato'rrvn arnrunner.

Application filed November l, 1923. Serial No. 672,094.

To allie/0m t may concern.'

lie it known that l, @tron C. F Amann, a citizen of the United States,residing at ll'ittsbiu'gh, in the county cf Allegheny and State ofPennsylvania., have invented new and useful improvements in LocomotiveAir rFurrets, of which the following is a. specilication.

This invention relates 'to fluid pressure controlled apparatus, and moreparticularly to manually operated mechanism for controlling the fluidpressure for operating various auxiliary devices on a steam locomo,`tive.

@n modern "steam locomotives, many accessories and parts are caused tofunction by the use of fluid under pressure, 'the supply of fluidpressure being controlled by corresponding manually operable valveslocated in the locomotive cab or elsewhere.

included among such accessories or parts are rail sanding devices, liredoor operators, grate shakers, reverse gear operators, ash pan doorcontrollers, bell ringers, and water scoop operators.

lThe principal object of my invention is4 to provide a unity controllingmechanism for the various pneunia'tically operated devices on thelocomotive, comprising a single bracket or valve base to which all ofthe penumatic'control .pipes lead and associated with which are theseveral manually operable valves by which the supply and release offluid under pressure to and from the various pneumatically controlleddevices is effected.

ln 'the accompanying drawing; Fig. 1 is a diagrammatic view, partly insection, of a pneumatic control mechanism for a locomotive, constructedin accordance with my invention; Fig. 2 a diagram, illustrating thevarious operating positions of one of the manually controlled valvesshown in Fig. 1; and Fig. 3 a diagram, illustrating the operatingpositions of the other manually controlled valves.

According to my invention, a combined pipe bracket and valvebase 1 isemployed to which the various pneumatic control pipes connect, such aspipe 2 for operating a pneumatic rail sander associated Awith the frontdrive wheels for sanding rails ahead of the front drive wheels when thelocomotive is running forward; pipe 3 for sanding the rails at the reardrive Wheels ahead ofV the wheels when the locomotive is runningforward,pipe 4ly for sanding the rails at the iront drive wheels when thelocomotive is moving in reverse; pipe 5 for sanding the rails at therearvdrive wheels when the locomotive is inreverse; pipe 6 forcontrolling the fluid pressure for operating the fire doers; pipe 7 thegrate shakers; pipe 8 the reverse gear; pipe'9, the ash pan doo-rs; pipe10, the bell ringer; and pipe 11, the water scoop.

Pipes 2, 3,4, and 5 lead to a valve seat of the bracket 1 on which ismounted a rotary slide valve 12; pipes 6 and 7 to a valve seat having arotary slide valve 13; pipes 8 and 9 to a valve seat having a rotaryvalve 141, and pipes 10 and 11, to a valve seat having a rotary slidevalve 15.

The rotary slide valves 12, 13, 14, and 15 are contained in therespective valve chambers 16, 17, 18, and 19,1and are.l adapted to bemanually operated by the respective handles 20, 21, 22, and 23.

riihe fluid pressure supply for the various pneumatic devices maybetaken from the usualmain reservoir 24, but in order toprevent possibledepletion of pressure invjthe main reservoir by supply to the auxiliarydevices, an additional supply reservoir is provided, which is chargedwith fluid under pressure through the operation of a governnor device2G. rlhe governor device 26 may be .similar to that shown in priorPatent No. 1,181,969, of ill/'alter V. Turner, dated March 16, 1915, bywhich the additional reservoir is only charged from' the main reservoirwhen the pressure in the main reservoir has been increased to a predetermined tei-mined degree, communication through which fluid is suppliedfrom the main reservoir to the additional reservoir is cut off.

rlhe additional reservoir 25 is connected to a passage 27 in the pipebracket 1, said passage having branch passages which lead to therespective valve chambers 16, 17, 18, and 19.

The diagram shown in Fig. 2 does not represent the actual ,constructionof the rotary slide valve 12, but serves merely to illustrate theoperation of the valve.

lf' the handle 2O is turned to position a. as shown in Fig. 2, pipe 2 isconnected to degree and belou7 said predea supply pipe 27 through cavity28 in the rotary valve 12, so that fluid under pressure is supplied tooperate the sanding device for supplying sand to the rails ahead of thefront drive Wheels as the locomotive is running ahead. In position bfluid is supplied only to pipe 3 connected to the sanding device for therear drive wheels for sanding the rails ahead of said Wheels when thelocomotive is running forward. In position c, both pipes 2 and 3 aresupplied With fluid pressure, so that the rails are sanded ahead of boththe front and rear drive Wheels. In position Z fluid pressure issupplied only to pipe l for sanding the rails at the rear of the frontdrive Wheels While the locomotive is running rearward. In position efluid is supplied only to pipe 5 for sanding the rails at the rear ofthe rear drive Wheels While the locomotive is in reverse, and inposition f fluid is supplied to both pipes d and 5.

The diagram shown in Fig. 3 serves to illustrate the operating positionsof the other three valves 13, 14, and l5.

For the valve 13 in position a fluid is supplied only to pipe G foroperating the fire door. In position Z) fluid is supplied only to pipe 7for operating the grate shaker, and in position o fluid is supplied toboth pipes 6 and 7 for operating simultaneously both the fire door andthe grate shaker.

Employing the same diagram shown in Fig. 3, the valve 14: in position asupplies fluid to pipe 8 for operating the reverse gear. In position bthe valve supplies fluid only to pipe 9 for operating the ash pan doors,and in position c fluid is supplied to both pipes 8 and 9 for operatingthe reverse gear and the ash pan doors at the same time. Similarly, withvalve l5, in position a the hell ringer alone is operated, in positionZ) the Water scoop, and in position o both the bell ringer and the Waterscoop may be operated.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent, is:

l. In a fluid pressure control apparatus for locomotives, thecombination With a pipe bracket having connected thereto, pipes forsanding, for controlling the fire door, the reversing gear, and the bellringer, of separate manually operable valves having seats on said pipebracket, one for controlling the sand pipes, another the fire door pipe,another the reversing gear pipe, and another the bell ringer pipe.

2. In a fluid pressure control apparatus for locomotives, thecombination with a pipe bracket having connected thereto, pipes forsanding, for controlling the fire door, the grate shaker, the reversinggear, the ash pan doors, the bell ringer, and the Water scoop, ofseparate manually operable valves having seats on said pipe bracket, onefor controlling the sand pipes, another for controlling the lire doorand grate shaker pipes, another the reversing gear and the ash pan doorpipes, and another the bell ringer and Water scoop pipes.

In testimony whereof I have hereunto set my hand.

CLYDE C. FARMER.

